How to resize the columns in a Flutter DataTable (SfDataGrid)?

In this article, we will show you how to resize the column in Flutter DataTable.

Initialize the SfDataGrid widget with all the required properties. Enable column resizing by setting the SfDataGrid.allowColumnsResizing property to true. Additionally, to resize the columns, it’s essential to maintain the column width collection at the application level and set the column width of the corresponding column using the SfDataGrid.onColumnResizeUpdate callback.

Map<String, double> columnWidths = {
  'id': double.nan,
  'name': double.nan,
  'designation': double.nan,
  'salary': double.nan
};

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Syncfusion Flutter DataGrid'),
      ),
      body: SfDataGrid(
        source: employeeDataSource,
        allowColumnsResizing: true,
        onColumnResizeUpdate: (ColumnResizeUpdateDetails details) {
          setState(() {
            columnWidths[details.column.columnName] = details.width;
          });
          return true;
        },
        columns: <GridColumn>[
          GridColumn(
              width: columnWidths['id']!,
              columnName: 'id',
              label: Container(
                  padding: EdgeInsets.all(16.0),
                  alignment: Alignment.center,
                  child: Text(
                    'ID',
                  ))),
          GridColumn(
              width: columnWidths['name']!,
              columnName: 'name',
              label: Container(
                  padding: EdgeInsets.all(8.0),
                  alignment: Alignment.center,
                  child: Text('Name'))),
          GridColumn(
              width: columnWidths['designation']!,
              columnName: 'designation',
              label: Container(
                  padding: EdgeInsets.all(8.0),
                  alignment: Alignment.center,
                  child: Text(
                    'Designation',
                    overflow: TextOverflow.ellipsis,
                  ))),
          GridColumn(
              width: columnWidths['salary']!,
              columnName: 'salary',
              label: Container(
                  padding: EdgeInsets.all(8.0),
                  alignment: Alignment.center,
                  child: Text('Salary'))),
        ],
      ),
    );
  }

You can download this example on GitHub.

Conclusion

I hope you enjoyed learning about how to resize the columns in a Flutter DataTable (SfDataGrid).

You can refer to our Flutter DataGrid feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications.

For current customers, you can check out our components from the License and Downloads page. If you are new to Syncfusion, you can try our 30-day free trial to check out our other controls.

If you have any queries or require clarifications, please let us know in the comments section below. You can also contact us through our support forums, Direct-Trac, or feedback portal. We are always happy to assist you!